Chain-link shackle.



PATENTED APR. 23, 1907.

G. A. H. DRESLER. CHAIN LINK SHAGKLE.

APPLICATION FILED MAB.14' 1904.

UNITED STATES ATENT @FFIQE.

CHAIN-LINK SHACKLE.

Specification of Letters Patent.

Patented April 23, 1907.

Application filed March 14,1904. Serial N0. 198,127-

To all whom it may concern.-

Be it known that I, GUSTAV AnoLF HEIN- men DnnsLnn, a subject of theEmperor of Germany, residing at 25 Karlstrasse, Kiel, in the Empire ofGermany, engineer, have invented new and useful Improvements inChain-Link Shackles, of which the following is a specification.

This invention relates to a connecting shackle for chain links of thatclass in which the ends of the open link are connected by means of aclosing member, and the object of the invention is to so construct theparts of the connecting shackle that the means for fastening the closingpart to the link will be subjected to but little strain, speedy releaseand opening is possible, and shocks exerted upon the closing member fromoutside are kept from the stud ends of the link.

The invention comprises certain novel features of construction andarrangement of parts as will be hereinafter fully described and pointedout in the claims.

In the accompanying; drawings: Figure 1 is partly a view, partly asection of a connecting shackle for chain links according to myinvention. F 2 is a cross section on line A 13 of Fig. 1. Fig. 3 is atop View of my connecting shackle, and Fig. 4 is a horizontal section online (1-4) of Fig. 1.

In my present constructional form of connecting shackle the ends of theopen link are provided with studs and the closing member is providedwith recesses which are directed to 'ard the interior of the chain linkand cover the connecting studs of the link in the manner of a cap. Theweb or shank portion of the closing member is surrounded by a box orsleeve which serves to rein force the pin of the link by taking thestrain. The connecting studs on the open link ends are provided with aflange extending all around the connecting studs. In order to be able tofully reinforce the link and to support the cap like portion of theconnecting member the upper part of the reinforcing sleeve is provided,in its end part, with half cylindrical recesses corresponding with thoseof the cap of the connecting member. If both the reinforcing sleeve andthe closing member are in their proper position they fully surround andtouch the connecting studs of the link, reinforce the pinof the link bytaking the strain, and keep all shocks from the stud ends.

I do not confine myself to any particular form of the different parts ofmy present connecting shackle, so for instance the reinforcing sleevemay be of elliptical, round, square, or any other section. But in thefollowing specification I describe a connecting shackle in form andarrangement such as I consider convenient and well adapted to thepurpose.

That others may fully understand my invention, I will particularlydescribe that form of it, which is shown in the drawing.

a is the chain link, provided on its open ends with connecting studs b,1). Over these studs Z), 7) engages the closing member a c, e arerecesses in the latter, so that cap like portions are formed.

f is the web or shank portion of the closing member 0.

g is a reinforcing sleeve. 9 g is the upper part of this sleeve providedwith half cylindrical recesses surrounding the lower portion ofconnecting studs 7), 12 provided with a flange like counter orbearing 1) 1; extending around the stud ends. Both the cap of theconnecting member and the upper part g g of the sleeve (1 whollysurround the end part of the connecting studs 1), o. The lower endsurface of the reinforcing sleeve 9 is cylin drically formed, the middleaxis of the cyl ndrical base g being the same with the cylindricalrecesses of the upper half-cylindrical part 9 of the connecting sleeve.The part 1 of the link upon which the sleeve {1 will rest, if broughtinto position, is curved in the same manner as the resting surface g, ofthe sleeve, so that the whole sleeve can easily be turned into itsworking position. to be seen from Fig. 2. The position of the sleeve,when the same enters between the connecting studs 0, v and the restingpart 9 of the link is shown in Fig. 2 in dotted lines.

The closing member (if is provided on its web portion with a conical pin7L which on gages in an opening in the chain link. This conical pin issecured in the link by means of a pin i, which latter may advantageouslybe secured from falling out by means of a leadfilling in a recess, by aplug it or the like.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. In a connecting shackle for chain links, the combination with thelink having stud ends provided with flange-like counter bearings (b 1))extending around the stud ends. of a closing member (0) for holding thestud ends together, the closing member being provided with a shankportion and having caplike extensions (d d), and a sleeve (g) for supvings (b 1)) extending around the stud ends,

of a closing member (0) provided with a shank portion and havingcap-like extensions (d (Z) for engaging the stud ends and a sleeve (g)for supporting the stud ends, the said sleeve surrounding the shankportion of the closing member and provided with half-cylindricalextensions (9 g) -forming, with the cap-like extensions of the closingmember, a sleeve which wholly surrounds the flangelike counter bearingsat the stud ends, the end. parts (9 of the sleeve (g) opposite to theextensions (9 9) being cvlindrically rounded, the chain link having acorrespondingly formed cylindrical recess (9) into which. the said endof the sleeve fits, the said cylindrical supporting surfaces having thesame axis (r) as the rounded recesses in the parts (9 g) supporting thestuds.

3. In a connecting shackle for chain links, the combination with thelink open at one side, and having studs on its ends at opposite sides ofthe opening, the said studs being provided with flanges extending aroundthe stud ends, of a closing member having a recessed portion forconnecting the stud ends,

the said closing member being provided with a shank portion terminatingin a pin for engaging an opening in the opposite side of the link, and asleeve surrounding the shank portion of the closing member and havingone of its end portions recessed to receive and support the studs, thesaid recessed portion of the closing member wholly surrounding the endpart of the said studs, the other end portion of the sleeve engaging theopposite side of the link.

4. In a connecting shackle for chain links, the combination 'ith thelink open at one side and having studs on its ends at opposite sides ofthe opening, the said studs being provided with flanges extending aroundthe stud ends, of a closing member for engaging the stud ends, the saidclosing member having a shank portion terminating in a pin adapted to besecured in an opening in the opposite side of the link, the said side ofthe link being formed with a rounded recess, and a sleeve surroundingthe shank portion of the closing member and having one of its endportions provided *ith recesses corresponding ith those of the closingmember, the closing member and sleeve when in position entirelysurrounding and bearing against the studs of the link, the other endportion of said sleeve being rounded and fitted in the correspondinglyformed recess in the link.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GUSTAV ADOLF HEINRICH DRESLEH.

Witnesses JULIUs RoJsxE, OTTO LAU.

